Steam-tipple.



Nm 890,321. l PATENTED'JUNE 9, 1908. F. R. WILLSON, JR.

STEAM TIPPLE.

APPLIGATON FILED JULY 13, 1904.

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APPLICATION FILED LY mp4.

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'J7/- I o PATENT@ JUNE 9, 1908. y

No. 890,321. Y l KATENTBD JUNE 9, 190s. F. R. WILLSON, JR.

' STEAM TIPPLE.

APPLICATION FILED JULY 13, v19041.

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'UNITED sTATEs PATENT cerros.

FREEMAN R. WILLSON, JR., OF WORTHINGTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE JEFFREY MANUFACTURING COMPANY, A CORPORATION OF OHIO.

STEAM-TIPPLE.

To all whom it may concern:

Beit known that I, FREEMAN R. WiLLsoN, Jr., a citizen of the United States, residing at Worthington, in the county 1ol" Franklin and State of Ohio, have invented certain new and useful Improvements in Steam-Tipples, of which the following is a specification, referencebeing had therein to the accompanying drawing;

This invention relates to an improved mechanism for unloadino cars while they are standing upon the trat, it relatinfr more particularly to mechanism of the class by which cars are tilted on transverse axes, that is to say by which each 'car is lifted at one end in order that its load may be discharged by falling out at the other end.

Among the purposes of the invention is this, to simplify the apparatus by dis )ensing i with many of the parts that have been eretofore essential and soy constructing and arranging those that are employed that the apparatus can be constructed at a minimum cost and yet have the power applied with the utmost economy.

Figure 1 is a side view of the mechanism embodying my improvements. Fig.A 2.is a plan view. Eig. 3 is a vertical longitudinal section of the lifting engine. Fig. 4 is a view partly in section and partly in elevation of the stop for preventing the cars from moving backward. Fig. 5 is a plan view of the parte of Fig. 4. Fig. (i is a cross section of'a fragment of the cylinder on the line -:t Fig. 3. Fig. 7 is a cross section of a fragment of the cylinder on the line Q/-y Eig. 3. Fig. 8 is a view of a modiiication of the draft rod interposed between the car stop and the rock shaft which moves the stop.

In the drawings there is illustrated a track system having the principal parts AAl. The cars are passed to the unloading apparatus over the track section A, this being somewhat inclined toward the said apparatus, and the section at A1 is more sharply inclined, in order that the cars after being emptied can pass rapidly on and away frcm the position occupied when unloading. These track sections are su ported in elevated positions u on suitabla framework, as indicated at Q-B, which can be varied to meet the circumstances that are met with: 'j'.i;

Heretofore it has been customary in car unloading or tippling mechanisms of this Specification of Letters Patent. Application led July '13, 1904. Serial No. 216,453.

class to employ at one point or another rising and falling rails or bars, contacting with the car wheels and moving up or down with the ing it.v When these movable track sections or wheel-engaging bars are used the apparatus becomesv com lex, and numerous parts are resent Whic are liable to wear .and

for instance, it is necessary ,to eect the tipplingand `em tying of several thousand cars daily; and t, e tippling mechansim has to be set in action ra idly, and at quickly tions of the rising and falling tracks require an appreciable time and the constant Wear at journals and bearings rapidly deteriorates the active parts of the apparatus.

In the present construction I have succeeded in dispensing with all movable track rails or bars for bearing against .and movin up and down with the wheels.

In the drawing,- C indicates-one ofthe cars, it being shown in the position occupied just before or just after the tippling o. eration; and C, the next succeeding carin t e'train.

The track sections A1 have the rails a--e1 connected to the rails av-e by the curved or bent parts at .az-r

Each car is in turn arrested in such way that its front Wheels' c are stopped at or slightly in advance of the bend at a2, this being accomplished by means of laterali movable horns or retaining bars D. ach of these is carried by a lever E, which is pivoted to the framework at e and has an outwardly extending arm e1. l

F is a link or pitman rod extending backward from this lever, to which it is pivotally G. The lrock shaft extends across the track from one side to the other and is mounted in suitable bearings. Preferably the connecting rods or pitmen F-F are formed of tubes j, which at their ends are secured to rods or castings jl--jz adapted to.- be pivoted to the parts E and g.

. H are springs, each' attached to a rod h secured to a bracket h and connected at h2 to one ofthe arms e.

Thel springs tend normally to draw the pitmen or connecting rods forward and to swing the hook bars D towards their innermost i positions. When the latter are in these posirecurring intervals. .'lhe reciprocating 1110-.

Patented J une 9, 1908.

cars to cause the unloading operation ordurbrea age. In operating some coal mines,

. air and also with apiston J and a tions they lie in the vertical planes ofthe treads of the track rails d -al and therefore in the planes of the peripheries of the car Wheels.4 uf

The front wheels of each car as it reaches its position for unloading impinge upon and are held by these, hook` rods during the 11n-- loading.

' supported upon beams of the framework.

One of these trunnions or journals is formed With a steam" tissage from whiohducts lead to the end of t einterior' chamber of the cylinder. With this duct there connects a steampipeM. .i j

N is a feed pipe connecting with the boiler or other source oli'supply and O -isan exhaust iii interposed athree-way valve P which, when turned to one' position, ermits the steam to pass tothe interior ofth and, when turned to the other, cuts-oil the steam and opensthe exhaustfpipe'. To ,this

valve there 1s connected anl operating arm Q. lWhichiis pivotallyconnected toarod R. The atter lis joined to" the hand lever S .pivoted atsf" When the operatorfthrusts 'theflever S in' one direction it throws the lin'klt'opens the valve at P and ermits steamfto enter below :to the track rails or any,T parts thereof dumping rock shaft the iston J ter .the lf'avf'er-*hasvv inade its lstro e he throws the lever of the'va'lve in the other direction and the steam is cut off and the cylinderis connected with the exhaust, whereupon the piston returns to its initial position. During each'of thesemovements of the' iston the cylinder oscilla-tes first forward an then backward.

The piston devices are not connected either levers or other devices. On the contrary, it bears directly against the car and is )rovlded with a head 'W at its upper end whic may be either forked to pernnt it to engage snugly with the axle or it may have an extended cross head adapted to engage with the under side of the car. Y is a tri and projecting up therefrom far enough to be' struck by the wheel'or lower part of the front end of an advancing car. U is a sto i mounted on the track frame and so arran ,e as to engage the rear side of the front ax e when the car is in position for and prevent its rolling or springing backward. This stop is a bar pivoted at u in a bracket U. fu. is a spring interposed between the bottom of the bracket and the stop bar but tending Between thepipes M, N and 0 there e,cylinder,y

pitmen F swings the horns 'or '.Wheels, and t e car or any device and lever attached tothe to hold the latter its uppermoet positionagainstthe stop'at a. 'I he axles of the cars impinge upon 'this 'swingingstop bar at ua and as 'theyare going forward press it down to such an extent that they are permitted to pass it. As soon as they pass itv the bar moves back again under the action ci' the s ring tp when the horns D are in osi"- 1 tion olding anar. This stop U is,as a oresaid, immediately behind the axle and pre= vents its moving backward; The 'operation of the' devices that have' been described will' be readily understood. ll a loaded cajr be assumed to be standing in a position indicated in -full lines Fig. 1, the op erator first moves the lever S to the roper $0 position to let the steam entery the cylinder I below the piston J. The latterrises and engages. directly .with the axle or the under side of thejcar bottom and the continuing action of the steam results in the lifting of the rear 35 yend of the oar around the front aXlefas a` hinge. The A front door being o ened, the contents of the car slide out` there rom. The operator then moves thelever S in thefopposite direction, the steam 1s cut 0H land 'the'ex-A 90 lhaust isv open.` When the-rear wheelsof the car have beenreturned to the trackrails at a, thenextincoming car is startedforward. It pressesv against the trip lever and rocks the shaft Gw'hich in turn through the'links or 95 olding bars D from the lanes of the car which as just been unloadedstarts forwardon the sharply ,descenda ing 'track sections at A. As soon as its rear 100 Wheels have passed `thehorns atv D the latter arereturncd to their inner'p'osition bythe; springs-H and the next car .isl stopped. byv t Aem read to have its contentsdisc argedv by a repetition of the steps of operation just, described." f l '.'l I have devised and made mechanism `i"`o1', 'controllingthe action of the piston 'so thatitv shall move 'slowly when it commences its forward's'troke and also when itisl finishing' its 110 backward stroke. The steam 'duct through the ,trunnion is extended as shown at i 'alon the side ofv the cylinder to the bottom thereo'; and communicates with theinteri'or portsi outward awa and vThan at t' is directly/af. the bottom 115 While that at z' is at a distance'somewhatfarther u The steamis always free to pass throng i the port at t" 'even when thepiston isl at its lowermost point. But it cannot'pass through -the port i when. the piston'- isdown, 120 the latter being of such length as to extend to a plane somewhat beyond it.

The port t" is of a ver small area. While that at z' is considerab y larger'. .Consesequently when the steam is first turned on a relatively slow movement will be imparted to the iston andi-his will continueuntil the hcadpatlV engages with the axle or with the bottom of the car, and just as such engagement commences the larger port at i is sooner.

openedand the full ressure of the steam is admitted'after whic the lifting'of the car will be rapidly effected.

When the car is descending, and alsothe iston, it will come down comparativel rapidl until it has assed the port i, ani then Wi l be cushione by the steam at the lower end of the cylinder whose .rapid esca l e therefrom is impeded because of the sma l area of the port at i. 4

what i claim is:

l. ln. a car unloading apparatus, the combination of a track, means for holding a car against forward' movement thereon, and a stop for holding the car against backward movement comprising a bracket U', a stop bar pivoted to said bracket and arranged to engage with an axle of the car, and a spring for holding the stop bar in position, and at the same time allowing it to yield to the forn ward movement of a car, substantially as set 2. ln a car unloading apparatus, the eoinbination of the track, the cylinder and the 'piston arranged to transmit power to the car to elevate it, means arranged at the front end oi' the car for preventing it from moving forward and means also arranged at the front end ol' the car for holding it against movement lnnlm'ard while it is being elevated, substantially as described.

3. ln a car unloading apparatus, the combination of' the track, the cylinder and piston adapted to transmit power for elevating the car, means l'or hoiding the car against forward movement and the automatically acting -yielding slop for holding the car against backward movement while it is being elcvated, substantially as described. I

ll. lo a car unloading apparatus, the colnbination ofthe rar track, the piston for transmitting power to the car to elevate it, the cylinder containing the piston, inea-ns for dclivering steam at a relatively reduced pressure to the cylinder and against the plston when it is near the lower end of its path and for delivering steam at a relatively greater pressure after it has engaged with the car, substantially as set forth. l

5. In a car unloading apparatus, the combination of the track, the piston adapted to engage with a car thereon, and transmit power thereto to elevate it, the cylinder containing the piston, a duet having a relatively reduced communication with the piston chamber when the piston-is near the end of its path and relatively increased communication therewith after the piston has traveled over part of its path, substantially as set forth.

In a car unloading ap aratus, the combination of the car track, t e piston adapted to engage with acar and transmit power thereto to elevate it,'the-cylinder containing the piston having a relatively reduced port near the end of the piston, and a relatively enlarged port at a point more remote from the said end, and a steam duct communicating with both the said ports, substantially as set forth. I

7. In a car unloading apparatus, the combination of' a car track, a pistontransmitting power to the ear for elevating it, a cylinder containing the iiston, and means for intro-V ducing motor iluid into and exhausting it from the cylinder comprising a duct having two ports leading into the cylinder at different distances l'rom one end thereof and adapted to contro! vthe movements of the piston .from thatend of the cylinder.

intestiinony whereof l aiiix my signature in presen-ce of' two witnesses.

' FREEMAN l. VHLLSGN, JR. Witnesses Joa T. WEBSTER, J. lrlloDoNALn. 

